<?php

namespace app\enterprise\controller;

use app\BaseController;
use app\enterprise\model\Message;
use utils\Curl;

class Chat extends BaseController
{
    protected $error = '';

    public function sendChat()
    {
        $content = $this->request->param('content');
        // 限制文字内容长度
        $text = strip_tags($content);
        $textLen = mb_strlen($text);
        if ($textLen > 2048) {
            return warning(lang('im.msgContentLimit') . $textLen);
        }
        // 接入聊天内容检测服务
        event('GreenText',['content'=>$content,'service'=>"chat_detection"]);

        $postData = $this->curlChat($content);

        $userInfo = $this->userInfo;
        $uid = $userInfo['id'];

        if (!isset($postData['choices'][0]['message']['content'])) {
            return warning(lang('system.fail'));
        }
        $newContent = $postData['choices'][0]['message']['content'];
        $newContent = '<p>' . $newContent . "</p>";

        if ($this->error) {
            return warning($this->error);
        }
        $chat_identify = '-2-'.$uid;
        $data = [
            'from_user'=> 1,
            'to_user'=> $uid,
            'content'=>str_encipher($newContent,true),
            'chat_identify'=>'-2-'.$uid,
            'create_time'=>time(),
            'type'=>'text',
            'is_group'=>4,
            'is_read'=>1,
            'is_top'=>0,
            'is_notice'=>1,
            'is_last'=>1,
            'at'=>[],
            'pid'=>0,
            'extends'=>['chat'=>$newContent],
        ];
        $data['id']=\utils\Str::getUuid();

        Message::update(['is_last'=>0],['chat_identify'=>$chat_identify]);
        $message=new Message();
        $message->save($data);
        $msgId=$message->msg_id;

        $msgInfo=$data;
        $msgInfo['status']='successd';
        $msgInfo['msg_id']=$msgId;
        $msgInfo['user_id']=1;
        $msgInfo['sendTime']=time()*1000;
        $msgInfo['toContactId']='-2';
        $msgInfo['to_user']='ai_chat';
        $msgInfo['content']=$newContent;
        $msgInfo['fromUser']=[
            'id'=>'-2',
            'avatar'=>getMainHost().'/static/common/img/ai.png',
            'displayName'=>lang('system.ai')
        ];
        wsSendMsg($uid,'simple',$msgInfo);

        return success('', $msgInfo);
    }

    protected function curlChat($content)
    {
        $url = "https://api.siliconflow.cn/v1/chat/completions";
        $data = [
            'model' => 'deepseek-ai/Deepseek-V3',
            'max_tokens' => 512,
            'enable_thinking' => true,
            'thinking_budget' => 4096,
            'min_p' => 0.05,
            'temperature' => 0.7,
            'top_p' => 0.7,
            'frequency_penalty' => 0.5,
            'n' => 1,
            'stream' => false,
            'stop' => [],
            'messages' => [
                [
                    'role' => 'system',
                    'content' => $content
                ]
            ],
        ];
        $key = 'sk-tfvzhlgatdoczhfcwgfruetxogmrhcyhhqdirwefadmvfibs';
        $header = [
            "Authorization: Bearer {$key}",
            'Content-Type: application/json'
        ];
        $json_data = json_encode($data);
        $curl = curl_init();

        curl_setopt_array($curl, [
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_ENCODING => "",
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "POST",
            CURLOPT_POSTFIELDS => $json_data,
            CURLOPT_HTTPHEADER => $header,
        ]);

        // 跳过证书验证（不推荐在生产环境使用）
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

        $response = curl_exec($curl);
        $err = curl_error($curl);

        curl_close($curl);

        if ($err) {
//            $this->error = "cURL Error #:" . $err;
            $this->error = lang('system.fail');
            return false;
        }
        $response = json_decode($response,true);
        if (!is_array($response)) {
            //$this->error = "cURL Error #:" . $response;
            $this->error = lang('system.fail');
            return false;
        }
        return $response;
    }
}